4 papers
Single-Scale Magnetoelastic Landau Quantization: Thermodynamics, Quantum Oscillations, and Metrology
Denise Assafrão, Faizuddin Ahmed, Edilberto O. Silva
We develop a unified, single-scale description of thermodynamics and quantum oscillations in electronic systems with a uniform areal density of screw dislocations under a uniform m…
Rotating effects on the Hall conductivity in a quantum dot
Carlos Magno O. Pereira, Luís Fernando C. Pereira, Denise Assafrão +1
We investigate the behavior of the quantized Hall conductivity in a two-dimensional quantum system under rotating effects, a uniform magnetic field, and an Aharonov-Bohm (AB) flux…
Modifications in the photoionization cross-section of a quantum dot with position-dependent effective mass
Carlos Magno O. Pereira, Denise Assafrão, Frankbelson dos S. Azevedo +3
In this work, we investigate the photoionization cross-section of an electron confined in a quantum dot, considering the position-dependent variation of the effective mass through…
Nonlinear refractive index changes and absorption coefficients in mesoscopic ring induced by variable effective mass
Denise Assafrao, A. G. de Lima, Edilberto O. Silva +1
This study explores the linear and nonlinear optical absorption coefficients (OAC) and refractive index changes (RIC) in quantum dot and quantum antidot systems with a position-dep…